Reference Manual
00809-0100-4004, Rev BA
August 2010
Rosemount 8800D
2-6
HARDWARE
CONFIGURATION
The hardware jumpers on the Rosemount 8800D enable you to set the alarm
and security. (See Figure 2-5.) To access the jumpers, remove the electronics
housing cover from the electronics end of the Rosemount 8800D. If your
Rosemount 8800D includes an LCD option, the alarm and security jumpers
are found on the face of the LCD indicator. (See Figure 2-6 on page 2-7.)
NOTE
If you will be changing configuration variables frequently, it may be
useful to leave the security lockout jumper in the OFF position to
avoid exposing the flowmeter electronics to the plant environment.
Set these jumpers during the commissioning stage to avoid exposing the
electronics to the plant environment.
Alarm
As part of normal operations, the Rosemount 8800D continuously runs a
self-diagnostic routine. If the routine detects an internal failure in the
electronics, flowmeter output is driven to a low or high alarm level, depending
on the position of the failure mode jumper.
The failure mode jumper is labeled ALARM and is set to the high position at
the factory per the CDS (Configuration Data Sheet); the default setting is HI.
Security
You can protect the configuration data with the security lockout jumper. With
the security lockout jumper ON, any configuration changes attempted on the
electronics are disallowed. You can still access and review any of the
operating parameters and scroll through the available changes, but no actual
changes will be permitted. The security lockout jumper is labeled SECURITY
and is set at the factory per the CDS; the default setting is OFF.
Figure 2-5. Alarm and Security Jumpers
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